ATtiny87 and ATtiny167 are microcontrollers in the Atmel AVR family. Both are available in either the 20-pin SOIC, the 20-pin TSSOP, or the 32-pin VQFN package with a 4, 8, or 16 MHz selectable clock speed. Runnning at higher clock speeds require higher minimum operating voltages, with 2.7 volts for 8 MHz and 4.5 volts for 16 MHz.

ATtiny87

The ATtiny87 has 8 KB of flash, 512 B of SRAM, 512 B of EEPROM and the following features:

2 SPI

1 I2C

1 UART

1 LIN

10-bit ADC with 11 channels

1 analog comparator

temperature sensor

2 timers

9 PWM channels

32 kHz RTC

internal RC oscillator

watchdog

ATtiny167

The ATtiny167 is identical to the ATtiny87 except that it has 16 KB of flash.